Viewing archive of Sunday, 19 August 2001

Geophysical report

Solar and Geophysical Activity Summary 2001 Aug 19 0245 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com

Joint USAF/NOAA Solar and Geophysical Activity Summary

SGAS Number 231 Issued at 0245Z on 19 Aug 2001 This report is compiled from data received at SWO on 18 Aug
A. Energetic Events
Begin  Max  End  Rgn   Loc   Xray  Op 245MHz 10cm   Sweep
None
B. Proton Events
The greater than 10 MeV solar energetic proton event has ended (start 16/0135 UTC, 493 pfu peak at 16/0355 UTC, and end 18/1845 UTC).
C. Geomagnetic Activity Summary
The geomagnetic field was quiet to active.
D. Stratwarm
None
E. Daily Indices: (real-time preliminary/estimated values)
10 cm 156  SSN 148  Afr/Ap 016/014   X-ray Background B5.9
Daily Proton Fluence (flux accumulation over 24 hrs)
GT 1 MeV 6.2e+06   GT 10 MeV 9.4e+05 p/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
Daily Electron Fluence
GT 2 MeV ***** e/(cm2-ster-day)
(GOES-8 satellite synchronous orbit W75 degrees)
3 Hour K-indices
Boulder 3 3 3 1 4 4 2 4 Planetary 3 3 3 2 3 4 3 3
F. Comments
  The GT 2 MeV electron fluence is not available due to
sensor degradation caused by the GT 10 MeV solar energetic proton
event.

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